JAVA Scripts Intoduction Tutorial videos for Beginner - PowerPoint PPT Presentation

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JAVA Scripts Intoduction Tutorial videos for Beginner

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This free JavaScript tutorial has been prepared for the beginners to help them understand the basic to advanced concepts related to JavaScript Programming language – PowerPoint PPT presentation

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Title: JAVA Scripts Intoduction Tutorial videos for Beginner


1
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2
JavaScript Introduction Tutorial Videos for
Beginner by
3
Highlights
  • JavaScript Definition
  • Variables and Operators
  • Control Flow Statements
  • Dialog boxes

4
JavaScript Definition
  • Uses in web development.
  • Interpreted and script oriented language.
  • Developed by Netscape.
  • Easier and faster to code than C and C.
  •  Client side scripting language.

5
Variables and operators
  • variables are containers for storing data values.
  • Storing a value in a variable is known
    as variable initialization.
  • Can store values in variable at creation or
    whenever variable is required.
  • var keyword is uses for variable declaration and
    initialization
  • Can store a value of any data type.
  • Global Variables and Local Variables.

6
Variables and operators
  • Operator is a character that represents an
    action.
  • JavaScript operator types are as follows

7
Variables and operators
  • Arithmetic operators perform actions on numerical
    values return a single numerical value. The
    standard arithmetic operators are , -, , and /.
  • Comparison operators are uses to compare two
    numerical values. JavaScript Comparison operators
    are  , !, gt, lt, gt , lt
  • Logical operators are used to determine the logic
    between variables or values. And (), or(),
    not (!) are JS logical operators.
  • Assignment operators assign values to JavaScript
    variables.
  • conditional operator that assigns a value to a
    variable based on some condition.

8
Control Flow Statements
  • Dictate how code runs under different conditions
    or until a condition is met.
  • Control Flow Structures allow your code to take
    certain actions based on a variety of scenarios.
  •  if else, switch case, for, while and do while
    are JavaScript control flow statements.
  • Control structure contains additional statement
    which would be executed under some specified
    conditions.

9
Dialog boxes
  • Dialog boxes are use to raise and alert, or to
    get confirmation.
  • Alert box, Confirmation box, Prompt box are
    dialog box types.
  • Alert dialog box is mostly used to give a warning
    message to the users.
  • Confirmation dialog box is mostly used to take
    user's consent on any option.
  • Prompt dialog box is very useful when you want to
    pop-up a text box to get user input. 

10
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11
Thank you
Thank You for Watching JavaScript Introduction
Tutorial Videos for Beginner by
http//www.courseing.com
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